EP1571388A1 - Air intake pipe for a motor vehicle - Google Patents
Air intake pipe for a motor vehicle Download PDFInfo
- Publication number
- EP1571388A1 EP1571388A1 EP04018373A EP04018373A EP1571388A1 EP 1571388 A1 EP1571388 A1 EP 1571388A1 EP 04018373 A EP04018373 A EP 04018373A EP 04018373 A EP04018373 A EP 04018373A EP 1571388 A1 EP1571388 A1 EP 1571388A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- air intake
- air
- fit
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
- F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10137—Flexible ducts, e.g. bellows or hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10144—Connections of intake ducts to each other or to another device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
- F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
Definitions
- This invention relates to an air intake pipe, particularly to one having its opposite ends respectively connected between the air intake end of the engine of an automobile and an air filter, able to increase intake of air and bendable freely to be assembled.
- the engine of an automobile is provided with an air inlet to suck in air for combustion or mixture vaporized gas, having an air filter assembled with the air inlet for filtering impurities in the air.
- the air filter is positioned in a closed space of the engine with inferior ventilation; therefore air sucked into the engine through the air filter is limited and the air filter is likely to suck in hot air produced in the engine, disadvantageous to the engine.
- an engine has been made with its air inlet connected with an air intake pipe which has its front end connected with an air filter so as to suck in a comparatively large quantity of cool air to help the engine to operate and prevent the air filter from sucking in hot air from the engine.
- a conventional air intake pipe 10, as shown in Fig. 1, includes a pipe body 11 having one end formed with a large pipe and the other end formed with a small pipe.
- the large pipe and the small pipe of the pipe body 11 are respectively formed with a curved portion 12 with a pipe end 13.
- An air filter 20 is fitted on the large pipe end 13 so that air can be sucked into the pipe body 11 through the large pipe end 13 and exhausted through the small pipe end 13, able to increase the flowing speed of air.
- the conventional air intake pipe 10 which is designed in a single type, can only be assembled in a specific automobile, but cannot be freely adjusted to match with various engine rooms of different automobiles. Even though the conventional air intake pipe 10 can be assembled in a common automobile, the air filter 20 always cannot exactly face the front of the automobile, thus lowering effect of air intake.
- a first objective of the invention is to offer an air intake pipe able to increase intake of air and bendable freely for assembly.
- the air intake pipe includes an accelerating inner fit pipe, an air intake outer pipe and a flexible fit pipe.
- the rotatable fit structure between the flexible fit pipe and the accelerating inner fit pipe and the air intake outer pipe, and the bendable and contractile flexible fit pipe enable the air intake pipe to be freely adjusted and installed in various engine rooms of different automobiles, having extensive applicability.
- a second objective of the invention is to offer an air intake pipe able to increase intake of air and bendable freely for assembly.
- the connected portion between the air intake outer pipe and the accelerating inner pipe is gradually shrunk so as to increase the flow and the pressure of air sucked into an engine through the air intake pipe to heighten horsepower of the engine.
- a preferred embodiment of an air intake pipe able to increase intake of air and bendable freely for assembly in the present invention includes a flexible fit pipe 31, an accelerating inner pipe 32 and an air intake outer pipe 33.
- the flexible fit pipe 31 made integral of rubber has its opposite openings respectively formed with a large and a small fit hollow 311 respectively having its outer circumferential edge shrunk inward and formed with a straight neck 312, and between these two necks 312 are formed a plurality of projecting rings 313 spaced apart at a preset distance.
- the flexible fit pipe 31 is flexible, and the projecting rings 313 are contractile and bendable so they can be bent in any direction and extended partially.
- the accelerating inner pipe 32 bent for about 90 degrees has its lower end inserted in the small fit hollow 311 of the flexible fit pipe 31 and secured with the neck 312 by means of the snap ring 314.
- the air intake outer pipe 33 bent for about 90 degrees and having a diameter a little larger than that of the accelerating inner pipe 32 has its upper end inserted in the large fit hollow 311 of the flexible fit pipe 31 and secured with the neck 312 by means of the snap ring 314.
- the air intake outer pipe 33 of the air intake pipe 30 has its lower end connected with an air filter 40 and the accelerating inner pipe 32 has its upper end connected with the air intake end 60 of an engine by a hard connecting pipe 50, thus finishing assembly of the air intake pipe 30. Since the parts arrangement in the engine room of each automobile are different, therefore, the air intake pipe 30, before assembled, has to be adjusted so as to match with various inner spaces of the engines of different automobiles, and the air filter 40 on the air intake outer pipe 33 has to be adjusted to exactly face the front of an automobile.
- the flexible fit pipe 31 between the accelerating inner pipe 32 and the air intake outer pipe 32 can be bent freely in any direction or extended partially to let the air intake pipe 30 installed in the engine room of an automobile conveniently, positioning the air filter 40 precisely, facilitating assembly and having extensive applicability, as shown in Fig. 5 and 6.
- the air intake pipe 30 has its air intake outer pipe 33 formed with a diameter larger than that of its accelerating inner pipe 32, and the connected portion of these two pipes 33, 32 is shrunk by gradually. Therefore, when air is sucked into the accelerating inner pipe 32 through the air intake outer pipe 33, the pressure and flow of the air will increase, and the quantity and pressure of the air introduced into the engine room through the air intake end 60 will increase as well, able to elevate the operation horsepower of the engine.
- a second preferred embodiment of an air intake pipe 30 able to increase intake of air and bendable freely for assembly in the present invention includes a flexible fit pipe 31, an accelerating inner pipe 32 and an air intake outer pipe 33, which are all the same as described in the first preferred embodiment, and a second flexible fit pipe 31.
- the second flexible fit pipe 31 is fitted on the top end of the accelerating inner pipe 32, which is to be connected with the air intake end 60 of the engine room, and the opposite fitting hollows 311 of the second flexible fit pipe 31 respectively formed with a same-sized diameter.
- the second flexible fit pipe 31 enables the air intake pipe 30 to be assembled with various types of engine rooms of different automobiles.
Abstract
Description
- This invention relates to an air intake pipe, particularly to one having its opposite ends respectively connected between the air intake end of the engine of an automobile and an air filter, able to increase intake of air and bendable freely to be assembled.
- Generally, the engine of an automobile is provided with an air inlet to suck in air for combustion or mixture vaporized gas, having an air filter assembled with the air inlet for filtering impurities in the air. The air filter is positioned in a closed space of the engine with inferior ventilation; therefore air sucked into the engine through the air filter is limited and the air filter is likely to suck in hot air produced in the engine, disadvantageous to the engine. To improve this defect, an engine has been made with its air inlet connected with an air intake pipe which has its front end connected with an air filter so as to suck in a comparatively large quantity of cool air to help the engine to operate and prevent the air filter from sucking in hot air from the engine.
- A conventional
air intake pipe 10, as shown in Fig. 1, includes apipe body 11 having one end formed with a large pipe and the other end formed with a small pipe. The large pipe and the small pipe of thepipe body 11 are respectively formed with acurved portion 12 with apipe end 13. Anair filter 20 is fitted on thelarge pipe end 13 so that air can be sucked into thepipe body 11 through thelarge pipe end 13 and exhausted through thesmall pipe end 13, able to increase the flowing speed of air. - However, the arrangement types of parts in the engine chamber of each automobile are different; therefore the conventional
air intake pipe 10, which is designed in a single type, can only be assembled in a specific automobile, but cannot be freely adjusted to match with various engine rooms of different automobiles. Even though the conventionalair intake pipe 10 can be assembled in a common automobile, theair filter 20 always cannot exactly face the front of the automobile, thus lowering effect of air intake. - A first objective of the invention is to offer an air intake pipe able to increase intake of air and bendable freely for assembly. The air intake pipe includes an accelerating inner fit pipe, an air intake outer pipe and a flexible fit pipe. The rotatable fit structure between the flexible fit pipe and the accelerating inner fit pipe and the air intake outer pipe, and the bendable and contractile flexible fit pipe enable the air intake pipe to be freely adjusted and installed in various engine rooms of different automobiles, having extensive applicability.
- A second objective of the invention is to offer an air intake pipe able to increase intake of air and bendable freely for assembly. The connected portion between the air intake outer pipe and the accelerating inner pipe is gradually shrunk so as to increase the flow and the pressure of air sucked into an engine through the air intake pipe to heighten horsepower of the engine.
- This invention will be better understood by referring to the accompanying drawings, wherein:
- Fig. 1 is a side-sectional view of a conventional air intake pipe;
- Fig. 2 is a perspective view of a first preferred embodiment of an air intake pipe in the present invention;
- Fig. 3 is an exploded perspective view of the first preferred embodiment of the air intake pipe in the present invention;
- Fig. 4 is a cross-sectional view of the first preferred embodiment of the air intake pipe in the present invention;
- Fig. 5 is a cross-sectional view of the first preferred embodiment of the air intake pipe in a being-turned condition in the present invention;
- Fig. 6 is a cross-sectional view of the first preferred embodiment of the air intake pipe in a flexible and curved condition in the present invention;
- Fig. 7 is a cross-sectional view of the first preferred embodiment of the air intake pipe in an installed condition in the present invention; and
- Fig. 8 is a cross-sectional view of a second preferred embodiment of the air intake pipe in installed condition in the present invention.
-
- A preferred embodiment of an air intake pipe able to increase intake of air and bendable freely for assembly in the present invention, as shown in Figs. 2, 3 and 4, includes a
flexible fit pipe 31, an acceleratinginner pipe 32 and an air intakeouter pipe 33. - The
flexible fit pipe 31 made integral of rubber has its opposite openings respectively formed with a large and a small fit hollow 311 respectively having its outer circumferential edge shrunk inward and formed with astraight neck 312, and between these twonecks 312 are formed a plurality of projectingrings 313 spaced apart at a preset distance. Theflexible fit pipe 31 is flexible, and the projectingrings 313 are contractile and bendable so they can be bent in any direction and extended partially. The necks 312-can be respectively fitted thereon with asnap ring 314 of a preset size. - The accelerating
inner pipe 32 bent for about 90 degrees has its lower end inserted in the small fit hollow 311 of theflexible fit pipe 31 and secured with theneck 312 by means of thesnap ring 314. - The air intake
outer pipe 33 bent for about 90 degrees and having a diameter a little larger than that of the acceleratinginner pipe 32 has its upper end inserted in the large fit hollow 311 of theflexible fit pipe 31 and secured with theneck 312 by means of thesnap ring 314. - In assembling, as shown in Fig. 7, the air intake
outer pipe 33 of theair intake pipe 30 has its lower end connected with anair filter 40 and the acceleratinginner pipe 32 has its upper end connected with theair intake end 60 of an engine by a hard connectingpipe 50, thus finishing assembly of theair intake pipe 30. Since the parts arrangement in the engine room of each automobile are different, therefore, theair intake pipe 30, before assembled, has to be adjusted so as to match with various inner spaces of the engines of different automobiles, and theair filter 40 on the air intakeouter pipe 33 has to be adjusted to exactly face the front of an automobile. During assembling of theair intake pipe 30, theflexible fit pipe 31 between the acceleratinginner pipe 32 and the air intakeouter pipe 32 can be bent freely in any direction or extended partially to let theair intake pipe 30 installed in the engine room of an automobile conveniently, positioning theair filter 40 precisely, facilitating assembly and having extensive applicability, as shown in Fig. 5 and 6. - In addition, the
air intake pipe 30 has its air intakeouter pipe 33 formed with a diameter larger than that of its acceleratinginner pipe 32, and the connected portion of these twopipes inner pipe 32 through the air intakeouter pipe 33, the pressure and flow of the air will increase, and the quantity and pressure of the air introduced into the engine room through theair intake end 60 will increase as well, able to elevate the operation horsepower of the engine. - A second preferred embodiment of an
air intake pipe 30 able to increase intake of air and bendable freely for assembly in the present invention, as shown in Fig.8, includes aflexible fit pipe 31, an acceleratinginner pipe 32 and an air intakeouter pipe 33, which are all the same as described in the first preferred embodiment, and a secondflexible fit pipe 31. The secondflexible fit pipe 31 is fitted on the top end of the acceleratinginner pipe 32, which is to be connected with theair intake end 60 of the engine room, and theopposite fitting hollows 311 of the secondflexible fit pipe 31 respectively formed with a same-sized diameter. Thus, the secondflexible fit pipe 31 enables theair intake pipe 30 to be assembled with various types of engine rooms of different automobiles. - While the preferred embodiments of the invention have been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
Claims (5)
- An air intake pipe able to increase intake of air and bendable freely for assembly, said air intake pipe comprising:A flexible fit pipe having its opposite ends respectively formed with a large and small fit hollow, said large and small fit hollow communicating with each other, said large and said small fit hollow respectively having its outer circumferential edge shrunk inward and then extending upward to form a straight neck, between said two straight necks formed a plurality of projecting rings spaced apart at a preset distance, said flexible fit pipe having flexibility and contractility and able to be bent freely:An accelerating inner pipe having its lower end inserted and secured in said small fit hollow of said flexible fit pipe, said accelerating inner pipe and said flexible fit pipe rotatable reciprocally for adjustment, said accelerating inner pipe having its upper end connected with the air intake end of an engine: andAn air intake outer pipe having a diameter larger than that of said accelerating inner pipe, said air intake outer pipe having its upper end inserted and secured in said large fit hollow of said flexible fit pipe, said air intake outer pipe and said flexible fit pipe able to be reciprocally rotated for adjustment.
- The air intake pipe able to increase intake of air and bendable freely for assembly as claimed in Claim 1, wherein said neck formed at the opposite ends of said flexible fit pipe can be fitted thereon with a snap ring to tighten the end of said accelerating inner pipe and said air intake outer pipe, which is fitted in said neck, said snap ring able to be tightened or loosened so as to rotate and adjust said flexible fit pipe and said accelerating inner pipe or said air intake outer pipe.
- The air intake pipe able to increase intake of air and bendable freely for assembly as claimed in Claim 1, wherein said flexible fit pipe is made integral of rubber.
- The air intake pipe able to increase intake of air and bendable freely for assembly as claimed in Claim 1, wherein said air intake outer pipe has its lower end connected with an air filter.
- The air intake pipe able to increase intake of air and bendable freely for assembly as claimed in Claim 1, wherein a second flexible fit pipe is fitted between the top end of said accelerating inner pipe and the air intake end of an engine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US790843 | 2004-03-03 | ||
US10/790,843 US6966292B2 (en) | 2003-10-31 | 2004-03-03 | Air intake pipe able to increase intake of air and bendable freely for assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1571388A1 true EP1571388A1 (en) | 2005-09-07 |
Family
ID=34750578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04018373A Withdrawn EP1571388A1 (en) | 2004-03-03 | 2004-08-03 | Air intake pipe for a motor vehicle |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1571388A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1906072A3 (en) * | 2006-09-27 | 2010-09-15 | MANN+HUMMEL GmbH | Pipe element in a fluid transporting pipe |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059293A (en) * | 1975-12-01 | 1977-11-22 | Sipler Clarence L | Connector |
FR2745626A1 (en) * | 1996-03-01 | 1997-09-05 | Peugeot | Connector for two non-aligned rigid pipes discharging gas |
US5682924A (en) * | 1994-06-30 | 1997-11-04 | Steere Enterprises, Inc. | Clean air ducts and methods for the manufacture thereof |
-
2004
- 2004-08-03 EP EP04018373A patent/EP1571388A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059293A (en) * | 1975-12-01 | 1977-11-22 | Sipler Clarence L | Connector |
US5682924A (en) * | 1994-06-30 | 1997-11-04 | Steere Enterprises, Inc. | Clean air ducts and methods for the manufacture thereof |
FR2745626A1 (en) * | 1996-03-01 | 1997-09-05 | Peugeot | Connector for two non-aligned rigid pipes discharging gas |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1906072A3 (en) * | 2006-09-27 | 2010-09-15 | MANN+HUMMEL GmbH | Pipe element in a fluid transporting pipe |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017094425A1 (en) | Air intake device | |
RU2006116447A (en) | ENGINE AND VACUUM CLEANER WITH SUCH ENGINE | |
EP2410166B1 (en) | Device for mixing exhaust gas with fresh air to be returned to a combustion engine | |
EP1221547A3 (en) | Canister purge system | |
US6966292B2 (en) | Air intake pipe able to increase intake of air and bendable freely for assembly | |
CN104169544A (en) | Compressor inlet manifold for a gas turbine engine | |
US20120247432A1 (en) | Evaporative emission purging system | |
US20110061635A1 (en) | Crankcase Ventilation Device for Internal Combustion Engines | |
US9341108B2 (en) | Vortex generator device | |
US20070289268A1 (en) | Air filter assembly | |
US8435337B2 (en) | Variable intake-type air cleaner | |
JP4657250B2 (en) | Intake device | |
JP5939313B2 (en) | Internal combustion engine with a supercharger | |
US6817332B2 (en) | Intake manifold of internal combustion engine | |
EP1571388A1 (en) | Air intake pipe for a motor vehicle | |
JP2009002334A (en) | Motorcycle airbox with flow-enhancing shape | |
JP6700823B2 (en) | Gas recirculation device | |
JP2001280311A (en) | Duct | |
US9657697B2 (en) | Intake duct | |
JP2017223292A (en) | Flow control valve | |
KR200366981Y1 (en) | Air intake pipe able to increase intake of air and bendable freely for assembly | |
JP2007205192A (en) | Blow-by gas reduction device | |
JP5701186B2 (en) | Intake device for internal combustion engine | |
JP2021071102A (en) | EGR valve system | |
US11255304B1 (en) | Turbo fitting for an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20040803 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20080301 |